Gas-burner.



No. 754,075. PATENTED MAR. 8, 1904.

W. KUHN.

-GAS BURNER.

APPLICATION FILED JULY 6, 1903.

N0 MODEL.

m l IIIII UNITED STATES Patented March 1904i;

PATENT OFFICE.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 754,075, dated March 8,1904..v

Application filed July 6, 1903. Serial No. 164,298. (No model.)

To all whom it may con/cern,.-

Beit known that I, WILLIAM KoHN, a subject of the Emperor ofAustria-Hungary, residing at Brooklyn, in the county lof Kings and Stateof New York, have invented certain new and useful Improvements inGas-Burners, of which the following is a specification, such as willenable those skilled in the art to which it appertains to make and usethe same.

This invention relates to gas-burners; and the object thereof is toprovide an ordinary illuminating-gas-burner fixture with an electricalattachment which will automatically operate to reignite the gas if thelatter be accidentally blown out or extinguished in any other waywithout being turned oif; and with this and other objects in view theinvention consistsl in an electrical attachment for gasburners of theclass and for the purpose specied constructed as hereinafter describedand claimed. I

This invention is an improvement on that described` and claimed inanother application for Letters Patent of the United States, led by meApril 8, 1903, Serial No. 150,906, and is fully disclosed in thefollowing specification, of which the accompanying drawings form a part,in which lthe separate parts of my improvement are designated bysuitable reference characters in each of the views, and in which- Figure1 is a sectional side elevation of an ordinary gas fixture and burnerprovided with my improvement; Fig. 2, a bottom plan view of the valveportion of the xture; Fig. 3, a section on the line 3 3 of Fig. 1, andFig. 4 a view similar to Fig. 1 and showing part of the construction onan enlarged scale.

In the drawings forming part of this speciication I have shown anordinary gas-fixture which may be connected, with a wall, wallbracket,chandelier, or other similar device, and said fixture comprises a pipea, having the usual valve c2, and in the form of construction shown saidpipe is provided with an elbow member co3, with which is'connected aburner-tube at, provided with the usual burner-tip Connected with theupper end of the burnertube at is a casing c, provided with aV shortshaft c2, with which is connected one end of a helical thermostat-springc3, the other end of which is secured to the casing c at c4. Within thecasing c are also placed two electrical contact devices Z and e, both ofwhich are preferably secured to the burner-tube c* and insulatedtherefrom,as shown at d2 and e2, and connected with the shaft c2 andinsulated therefrom is a rotatable contact device f, which is adapted toconnect with both of the contact devices d and e.

Connected with the pipe a near the casing g of the valve a2 is a bandg2, and this band is provided at one side with a horizontally-arrangedsegmental. member g3, and the end g4 of the valve c2 is provided with aspring-arm g5, the free end of which is adapted to bear on the segmentalmember g3 of the band g2, and when the valve a2 is in position to cutoif the flow of gas through the pipe a the springarm g5 is insulatedfrom the member g3, as shown at g, said member g3 being provided withinsulating material at Q6 for this purpose.

I also provide a battery z, or other generator or source of electricity,and a wire h2 is connected with this battery and with the pipe a orvalve-casing g, or this connection may be made with the valve or withthe springarm g5, and another wire is connected with the battery it andpassed into the casing @and connected with the contact device e. Anotherwire j' is connected with. the contact device d, and in the form ofconstruction shown is passed into the burner-tube and through theburner-tip band connected with a platinum coil v, arranged transverselyof the top Iof the burner-tip, and connected with the other end of saidcoil is another wire m, which extends downwardly through the burner tipand through the burner-tube and the pipe c and the elbow as and ispassed outwardly through the pipe a adjacent to the band g2, as shown atm2, and is connected with said band g2 at m3.

A coil n, of copper or other suitable metal, is wound on the burner-tip5, and one end thereof is formed into an arm n2, which is passed intothe casing c and bears on the thermostat-coil c3. When the parts are inthe position shown in Figs. 1 and 2, the circuit is not complete, saidcircuit being broken at g; but if the valve be turned so as to permitthe gas to flow through the fixture the arm g5 will bear on thesegmental member g3 and the circuit will be complete and the platinumcoil L will be heated and will ignite the gas flowing through theburner-tip. At this time the thermostat-spring c3 is heated andthrowsthe contact device f' into the position shown in dotted lines inFig. 4 and the circuit is broken and remains broken as long as theburner is in operation, and during this time the battery z, is at rest.Ii' at any time while the parts are in this position the gas should beblown out or otherwise accidentally extinguished without cutting off-theflow, the thermostat c3 will immediately cool and the rotary contactdevice f will be turned thereby into the Yposition shown in full linesin Figs; l and 4, and the circuit will again be completed and the gaswill be again ignited and the burning of the gas will again heat thethermostat and the contact device fwill again be turned into theposition shown in dotted lines in Fig. t and the circuit will be againbroken and the battery it will be at rest.

It will thus be seen that when the gas is not flowing through the`fixture the circuit is broken by the arm g5 and the battery is at rest,and when the gas is burning the circuit is broken by the rotarycontactvdevicej1 and the battery is again at rest, and if at any timethe gas is blown out or otherwise accidentally extinguished. withoutbeing turned orf Athe thermostat c3 will operate the contact device f toagain close the circuit and relight the gas.

It will thus beseen that under usual conditions the `battery it is notin operation when the gas is burning and is also not in operation whenthe gas is turned off by the key, and by reason of this fact an ordinarydry battery may be used for a great length of time; but any suitablesource of electrical supply may be provided.

rIhis device is simple in construction and operation and may be appliedto illuminatinggas burners wherever desired, and changes in andmodifications of the construction herein described may be made withoutdeparting from the spirit of my invention or sacriiicingits advantages.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device of the class described, a gaslixture provided with avalve, a burner-tube, and a burneri-tip connected with said tube; acontact device connected with the fixture adjacent to the valve andprovided with a segmental member, a spring-arm connected with the valveand operating in connection with said member, means for insulating saidarm from said member when the gas is turned oif, a casing connected withthe burner-tube, two insulated contact devices secured in said casing, aplatinum coil supported across the burner-tip and one end of which is inelectrical connection with one of said contact devices, and the otherend of which is in electrical connection with the contact device securedto the fixture, a battery in electrical connection with the iiXture andwith the other contact device within said casing, arotary contact devicein said casing and adapted to complete the circuit betweenisaidstationary contact devices, a thermostat for operating the rotarycontact device and` means connected with the burner-tip for heating thethermostat, substantially as shown and described.

2. In a device of the class described provided with a burner-tube andburner-tip, a platinum coil supported over the burner-tip, a casingsecured to the burner-tube and provided with two stationary insulatedcontact devices, a rotary contact device mounted between the stationarycontact devices, a thermostat for operating the rotary contact device,means whereby the heat of the burner will operate the thermostat, a4wire connected with one end of the platinum coil and with one of saidstationary contact devices, another wire connected with the other end ofsaid platinum coil, a battery in an open circuit formed by said wires.and means whereby the turning on of the gas will complete said circuit,substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 3d day of July,1903.

WILLIAM KoHN.

Witnesses:

L. U. STEWART, C. E. MULREANY.

IOC

